A Simple Bit Allocation Scheme Based on Adaptive Coding for MIMO-OFDM Systems with V-BLAST Detector

Jongwon KIM  Sanhae KIM  Min-Cheol HONG  Yoan SHIN 

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences  Vol.E88-A  No.6  pp.1533-1537
Publication Date: 2005/06/01
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Papers Selected from 2004 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2004))
Category: 
Keyword: 
MIMO-OFDM,  V-BLAST,  simplified bit allocation,  adaptive coding bit allocation, 

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Summary: 
We present a simple bit allocation scheme based on adaptive coding for MIMO-OFDM (Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing) systems with V-BLAST (Vertical-Bell laboratories LAyered Space-Time) detector. The proposed scheme controls the code rate of the channel coding and assigns the same modulation and coding to the set of selected sub-channels, which greatly reduces the feedback burden while achieving good performance. Simulation results show that the proposed scheme with minimal feedback provides significant performance improvement over other systems.